JP2012030165A5 - - Google Patents

Description

Adapter and liquid discharge device

The present invention can be used to lower the shoulder from the operator, a small liquid discharge equipment using a battery as a power source and to adapters for use therein.

2. Description of the Related Art Conventionally, a liquid discharge device such as a sprayer that sprays a medicine in a mist form and sprays it on crops or trees has been used. The power of the liquid discharge equipment, which uses an internal combustion engine, which uses an electric motor, such as those of an accumulator using a hand pump are known. In recent years, an electric sprayer driven using a battery has been widely used for ease of handling. The electric sprayer has a motor, a pump for pumping medicine, a battery for supplying power to the motor, and a medicine tank. Composed. Such a battery as a small liquid discharge equipment for a power source, known nebulizers Patent Document 1.

  In the sprayer of Patent Document 1, the drive shaft of a pump for feeding medicine is connected to the output shaft of the motor, the suction port of the pump communicates with the medicine tank, and the discharge port of the pump is sprayed of the spray bottle through the safety valve and the hose. Connected to the nozzle. In Patent Document 1, a battery is used as a power source of a motor, and a motor control circuit that controls on / off of the motor drive is connected. The motor control circuit includes a multi-stage output voltage adjustment circuit having a variable resistor with an external operation switch capable of selecting a position freely from each of multi-stage positions by an external operation and selecting a resistance corresponding to the position. Based on the output voltage of the multi-stage output voltage adjustment circuit selected by the switch operation, the motor drive is controlled to be turned on / off.

JP 2003-181337 A

In the technique of Patent Document 1, the multistage control of the chemical pressure can be selected by the user by rotating the external knob of the rotary switch. However, in order the motor control circuit for performing a multi-step control of the chemical liquid pressure provided in the liquid dispenser body, a problem that can not readily be like for maintenance when the motor control circuit is broken there were.

The present invention has been made in view of the above background, and its object is to provide an adapter and a liquid discharge equipment which can facilitate maintenance of the control circuit of the motor.

Another object of the present invention, by allowing the ejection amount is to provide an adapter and a liquid discharge equipment for discharging work is to be in accordance with the situation.

Still another object of the present invention is to provide a was a control circuit that can adjust the discharge amount to be exchanged with the battery adapter and a liquid discharge equipment.

  The characteristics of representative ones of the inventions disclosed in the present application will be described as follows.

According to one aspect of the present invention, an adapter is detachably connected between a housing that houses a motor and a drive unit driven by the motor, and a battery that supplies power to the motor. The power supplied to can be arbitrarily adjusted. The adapter can arbitrarily adjust the output of the motor in a state where it is mounted on the housing. A battery pack for an electric tool can be used as the battery. The adapter is provided with a control circuit that performs drive control of the motor and an adjustment circuit that sets the rotational speed of the motor. The drive unit has a pump for sucking liquid, and the pump is accommodated in the housing.
According to another aspect of the present invention, a liquid tank, a motor, a pump driven by the motor for sucking and discharging the liquid in the liquid tank, a nozzle portion connected to the discharge port of the pump, a motor and a pump are provided. a liquid discharge equipment having a housing containing, provided the battery box which is detachably connected to the housing and an adjusting means for changing the power supplied to the motor to the battery box. A battery can be attached to and detached from the battery box, and the adjusting means can change the power supplied to the motor in multiple steps or in a stepless manner.

  According to another feature of the invention, the adjusting means comprises a variable resistor for changing the output voltage of the battery box and a dial for operating the variable resistor. An opening for housing the battery box is provided in the housing, an outer surface that covers the opening of the housing is formed in a part of the battery box, and a dial is provided on the outer surface. A recess is provided on the outer surface, and the dial is provided so that a part or all of the dial is exposed in the recess. An electronic control circuit for controlling the change of the output voltage is accommodated inside the battery box.

According to still another aspect of the present invention, the battery is a primary battery such as dry battery, or is constituted by a battery pack containing a plurality of secondary battery cells, so they are capable of selectively mounted to the liquid discharge equipment I made it. The motor is a direct current motor, and the pump is a gear pump driven by the direct current motor. By changing the power supplied to the direct current motor by the adjusting means, the number of rotations of the gear pump can be changed to adjust the liquid discharge amount.

According to still another aspect of the present invention, a liquid tank, a housing provided above the liquid tank, a handle provided at an upper portion of the housing and extending in the front-rear direction, a shoulder belt connected to the upper portion of the housing, and a housing to a motor which is accommodated, and a pump for discharging by sucking the liquid of the driven liquid tank by a motor, in the liquid discharge equipment having a nozzle portion capable of ejecting liquid in the liquid tank is connected to the housing, the nozzle unit Is provided so as to protrude from the front of the housing, and adjusting means for changing the power supplied to the motor is provided at the rear of the housing.

According to the first to sixth aspects of the present invention, since the adapter configured to arbitrarily adjust the power supplied from the battery to the motor is realized, an optimal power adjustment device can be prepared according to the battery to be mounted. In addition, since there is no need to provide an adjusting means on the main body side of the liquid ejection device, the configuration on the main body side can be simply configured, and the reliability can be improved.
According to the seventh aspect of the present invention, since the battery box is provided with the adjusting means for changing the power supplied to the motor, an optimum power adjusting device can be prepared according to the battery to be mounted. Further, since the main body of the liquid discharge equipment is not necessary to provide an adjustment means, the configuration of the main body side can be configured simple, it is possible to improve the reliability.

According to the invention of claim 8 , since the battery box is provided with the adjusting means, it is possible to prepare the adjusting means for the electric power supplied to the motor by mounting the battery box. In addition, since the adjustment means can change the power supplied to the motor in multiple steps or steplessly, the discharge amount can be finely controlled by the adjustment means. Furthermore, maintenance and inspection of the motor control circuit can be easily performed.

According to the invention of claim 9 , since the adjusting means includes a variable resistor for changing the output voltage of the battery box and a dial for operating the variable resistor, batteries of various types and voltages are used. Therefore, for example, a battery pack widely used in electric tools can be used.

According to the invention of claim 10 , the housing is provided with an opening for storing the battery box, and an outer surface that covers the opening of the housing is formed in a part of the battery box. since part constitutes an outer shell of the housing, the operator of the operation unit such as a dial provided on the battery pack can easily be operated, it is possible to realize a good usability liquid discharge equipment.

According to the eleventh aspect of the present invention, the depression is provided on the outer surface, and the dial is provided so that part or all of the dial is exposed in the depression, so that the dial does not protrude from the housing. The risk of damage is reduced.

According to the invention of claim 12, it is provided with the electronic control circuitry for controlling the change of the output voltage to the battery box, on which it is possible to use a rated voltage or more batteries of the liquid discharge equipment, a battery voltage The discharge amount can be adjusted by making it appropriately variable.

According to the invention of claim 13, the battery can be realized because a primary battery, a liquid discharge equipment which attained a significant cost reduction by a power supply widely batteries used in a single form or the like.

According to the invention of claim 14, since the battery is a battery pack containing a plurality of secondary battery cells, can be used battery pack used widely in power tools or the like to the liquid discharge equipment, dedicated two It is not necessary to prepare the next battery cell.

According to the invention of claim 15 , the motor is a direct current motor, the pump is a gear pump driven by the direct current motor, and the rotation speed of the gear pump is changed by changing the power supplied to the direct current motor by the adjusting means. Since the liquid discharge amount is adjusted, the discharge amount can be easily adjusted only by adjusting the supply voltage to the motor.

According to the invention of claim 16, in the liquid discharge equipment of shoulder type, provided the nozzle portion so as to protrude from the front of the housing, constituting an adjustment means for changing the power supplied to the motor so as to provide the rear of the housing since the, it is possible to easily change the power supplied to the motor liquid discharge equipment in a state of hanging from the shoulder, on which the discharge amount is adjustable, the adjustment operation is easily user-friendly liquid dispenser Can be realized.

  The above and other objects and novel features of the present invention will become apparent from the following description and drawings.

It is a side view which shows the whole structure of the sprayer 1 which concerns on the Example of this invention. It is a rear view of the main body housing 10 of the sprayer 1 of FIG. It is a longitudinal cross-sectional view of the main-body part of the sprayer 1 of FIG. 1, and is a figure which shows the state equipped with the secondary battery. It is a longitudinal cross-sectional view of the sprayer 1 whole of FIG. 1, and is a figure which shows the state which mounted | wore the primary battery. It is an expanded sectional view of the motor 4 and the gear pump 7 of FIG. It is a control block diagram of the motor 4 of FIG. 1, and is a figure which shows the state which connected the secondary battery as an electric power source. It is a control block diagram of the motor 4 of FIG. 1, and is a figure which shows the state which connected the primary battery as an electric power source. It is a side view at the time of battery pack 35 mounting of secondary battery box 20 concerning the example of the present invention. It is the side view seen from the other surface at the time of battery pack 35 mounting | wearing of the secondary battery box 20 which concerns on the Example of this invention. It is a top view at the time of the battery pack 35 mounting | wearing of the secondary battery box 20 which concerns on the Example of this invention. It is a bottom view at the time of the battery pack 35 mounting | wearing of the secondary battery box 20 which concerns on the Example of this invention. It is a rear view of the secondary battery box 20 according to the embodiment of the present invention. 1 is a front view of a secondary battery box 20 according to an embodiment of the present invention. It is a side view at the time of the dry cell 48 mounting | wearing of the primary battery box 40 which concerns on the Example of this invention. It is a top view at the time of the dry cell 48 mounting | wearing of the primary battery box 40 which concerns on the Example of this invention. It is a bottom view at the time of the dry cell 48 mounting | wearing of the primary battery box 40 which concerns on the Example of this invention. It is a rear view at the time of the dry battery 48 mounting | wearing of the primary battery box 40 based on the Example of this invention. It is a front view of the primary battery box 40 which concerns on the Example of this invention. FIG. 6 is a side view of the primary battery box 40 according to the embodiment of the present invention when the dry battery 48 is not attached. FIG. 6 is a top view of the primary battery box 40 according to the embodiment of the present invention when the dry battery 48 is not attached. FIG. 6 is a bottom view of the primary battery box 40 according to the embodiment of the present invention when the dry battery 48 is not attached. FIG. 6 is a rear view of the primary battery box 40 according to the embodiment of the present invention when the dry battery 48 is not attached.

  Embodiments of the present invention will be described below with reference to the drawings. In the following drawings, the same portions are denoted by the same reference numerals, and repeated description is omitted. Moreover, in this specification, it demonstrates as the direction shown to FIG.1 and FIG.

  A sprayer 1 shown as one of the embodiments of the present invention is mainly constituted by a main body housing 10 made of synthetic resin or the like and a medicine tank 2 attached to the lower part thereof. The main body housing 10 is configured to be divided into left and right parts by integral molding of synthetic resin such as plastic, and the left and right housings are fixed by a plurality of screws 19. A nozzle portion 50 is connected to the front side of the main body housing 10 via a hose 51. The nozzle part 50 is a part for spraying the liquid sent out by the motor in the form of a mist, a grip part 52 for an operator to grip with one hand, a pipe 53 extending substantially linearly from the grip part 52, and a pipe Two nozzles 54 branched from the tip of 53 and a spray port 55 are provided at the tip of the nozzle 54. The hose 51 is a pipe made of, for example, vinyl, and is fixed to the main body housing 10 with a mounting cap 56.

  A grip 11 is provided on the upper part of the main body housing 10 so that an operator can grip the sprayer 1 with one hand. Further, a shoulder belt 59 is provided on the upper side of the grip portion 11, and when performing the spraying operation, the operator performs the spraying operation with the shoulder belt 59 placed on the right shoulder or the left shoulder and the sprayer 1 being lowered from the shoulder. be able to.

  The drug tank 2 is a tank for storing a liquid composed of a translucent synthetic resin or the like, and the drug tank 2 of this embodiment can store approximately 5 liters of drug from the opening 2a. A cap 3 for the medicine tank 2 is provided in the opening 2a. The side of the medicine tank 2 is provided with a scale 2b indicating the amount of the liquid so that the capacity of the medicine placed inside can be easily understood. The lower part of the medicine tank 2 is formed with protruding leg portions 2f and 2g that can be stably placed when the sprayer 1 is placed on the floor. The projecting leg portions 2 f and 2 g are configured as projections on a plane extending in the lateral direction (left-right direction), and are manufactured integrally with the drug tank 2 by molding.

  The nozzle holding part 18 is provided on the rear side of the main body housing 10 so that the grip part 52 of the nozzle part 50 can be placed on the nozzle holding part 18 when the spraying operation is not performed. By using the nozzle holder 18 so that the spray port of the nozzle unit 50 faces upward, it is possible to prevent liquid from coming out of the nozzle unit 50 due to the siphon effect when the motor 4 is stopped. An opening 12 is provided above the nozzle holding portion 18 of the main body housing 10, and either the secondary battery box 20 or a primary battery box described later is detachably attached from the opening 12. In the secondary battery box 20, a secondary battery is detachably attached to the secondary battery box 20. The portion exposed to the outside of the secondary battery box 20 has a shape that is continuous with the shape of the main body housing 10, and a recessed portion 21 b is provided in a part thereof. A portion of the dial 23 for adjusting the rotational speed of the motor 4 is provided in the hollow portion 21b so as to be exposed.

  FIG. 2 is a rear view of the main body housing 10 of the sprayer 1. The main body housing 10 can be divided into two parts left and right with respect to the left and right center line, and is assembled by joining the right housing 10a and the left housing 10b. An opening 12 is provided in the main body housing 10, and a secondary battery box 20 can be attached to the opening 12. The size and shape of the opening 12 are set so that battery boxes having a common depth and opening shape can be used even if the type and size of the battery to be mounted are changed. The user or seller can select the type of battery box to be used according to the usage and price of the sprayer, and can attach the battery box according to the selected battery.

  The secondary battery box 20 serves as an adapter for mounting a battery pack widely used in an electric tool or the like to the sprayer 1. The secondary battery box 20 of the present embodiment is configured such that the spray amount can be adjusted steplessly by adjusting the rotation speed of the motor steplessly. The rotation speed of the motor is adjusted by turning a dial 23 provided in the secondary battery box 20. Although not shown, numbers (for example, 1 to 3) indicating the number of rotations are printed on the dial 23, and the dial 23 is dialed with reference to the triangular mark 26 provided on the surface of the secondary battery box 20. 23, the number of rotations of the motor, that is, the spray amount can be set.

  The nozzle holding portion 18 is provided on the back side of the main body housing 10 and below the opening 12. The nozzle holding portion 18 includes a right arm portion 18a configured to extend from the right housing 10a and a left arm portion 18b configured to extend from the left housing 10b. The right arm portion 18a and the left arm portion 18b are arranged with a predetermined distance from each other. After the hose 51 is sandwiched between the right arm portion 18a and the left arm portion 18b, the grip portion 52 is moved from the top to the bottom, thereby moving the nozzle portion 50 to the nozzle. It can be hung on the holding part 18. An opening 16 is provided on the right side of the nozzle holding portion 18 of the main body housing 10, and the release lever 15 that is an operation member for removing the secondary battery box 20 can be operated through the opening 16.

  Above the secondary battery box 20, an LED lamp 32 is provided to indicate the remaining battery level. In the present invention, the operation unit for controlling the sprayer 1 and the display unit (LED lamp 32) for displaying the control state are provided in the secondary battery box 20. Also in this embodiment, the dial 23 is provided in the secondary battery box 20 except for a switch (described later) for turning on and off the motor switch in the operation unit.

  FIG. 3 is a vertical cross-sectional view of the main body of the sprayer 1 and shows a state where a secondary battery is mounted. The motor 4 is rotated by DC power supplied from the secondary battery box 20. The output shaft of the motor 4 is connected to the drive shaft of the gear pump 7. The secondary battery box 20 is connected to a switch 13 by a wire 14a from a plus terminal 17a formed of a spring, and is connected from the switch 13 to a plus terminal 5a of the motor 4 through a wire 14b. On the other hand, the minus terminal 17b (described later) of the secondary battery box 20 is connected to the minus terminal 5b of the motor 4 by the wiring 14c.

  The suction port 7c of the gear pump 7 communicates with the drug tank 2 through a hose 6, and the discharge port 7d is connected to the take-out port 9 through a hose 8 and a take-out pipe 9a. A hose 51 is connected to the outlet 9 using a mounting cap 56. In this embodiment, a pressure setting valve for adjusting the pressure is not connected between the gear pump 7 and the extraction pipe 9a. However, the present invention is not limited to this structure, and a pressure setting valve may be provided. In addition, a means for partially returning to the medicine tank when the discharge pressure of the gear pump 7 exceeds the set pressure may be provided.

  A battery pack 35 widely used in electric tools is mounted on the secondary battery box 20. The battery pack 35 has a substantially L-shaped outer shape when viewed from the side, and a plurality of batteries are accommodated therein. In the present embodiment, since three lithium ion battery cells are included and one cell is about 3.6V, the voltage of the battery pack 35 is about 10.8V. When the battery pack 35 is attached to the secondary battery box 20, the terminal portion of the battery pack 35 contacts the terminal 29. The tip portion 35 a of the battery pack 35 is completely accommodated inside the housing of the secondary battery box 20. When the battery pack 35 is attached to the secondary battery box 20, a latch (not shown) formed in the battery pack 35 engages with a recess (not shown) formed in the secondary battery box 20, so that the battery pack 35 is Fixed. To release this fixed state, the battery pack 35 is removed from the secondary battery box 20 while pressing the release buttons 36 provided on both sides of the battery pack 35.

  The battery pack 35 may use not only a lithium ion battery but also a nickel cadmium battery or other secondary battery. For example, a nickel cadmium battery or a lithium ion battery has a charge / discharge count of 500 or more, has a long battery life, is easy to handle, and has excellent rapid charge characteristics. Moreover, it is good to use what is widely used with an electric tool etc. instead of preparing the battery pack 35 for exclusive use for the sprayer 1. FIG.

  The secondary battery box 20 includes not only a terminal 29 for connection to the battery pack 35, but also a control circuit for performing drive control of the motor 4 and an adjustment circuit for setting the rotational speed of the motor 4. . The secondary battery box 20 is provided with a control circuit board 27 for mounting an adjustment circuit, and an electronic circuit (not shown) and a terminal block 30 are mounted on the control circuit board 27. The terminal block 30 is provided with a terminal 29 for connecting to the electrode of the battery pack 35, and the electric power from the battery pack 35 is supplied to the motor 4 via the drive control circuit.

  An LED lamp 32 as a battery checker is provided on the surface exposed to the outside of the secondary battery box 20. In the present embodiment, the LED lamp 32 is caused to blink when the battery voltage becomes lower than the appropriate voltage value of the motor 4 for normally spraying. Thus, the operator can easily know that the battery voltage has decreased during the spraying operation. A circuit for driving the LED lamp 32 as a battery checker is included in a control circuit mounted on the control circuit board 27. Therefore, it is possible to realize a battery check unit that matches the secondary battery box 20. The method of realizing the battery checker is not limited to the lighting method described above, and the emission color may be changed from green to yellow to red as the voltage drops, or a liquid crystal display panel is provided to display the battery mark. The remaining amount may be displayed by area, or any other method may be used.

  On the upper wall 2b of the medicine tank 2, there is formed a mounting portion 2c that is circular and has a convex portion formed on the circumference thereof in order to attach to the circular connecting portion 10c provided below the main body housing 10. . A hole 2e for penetrating the hose 6 is formed in a part of the attachment portion 2c. A convex portion 2 d is further formed on the upper wall 2 b of the medicine tank 2, and a latching portion 10 d for locking when the medicine tank 2 is attached to the lower side of the main body housing 10 is provided.

  In the sprayer 1 configured as described above, when a medicine such as an insecticide or a nutrient is put into the medicine tank 2 and the switch 13 is turned on, a predetermined voltage is supplied from the secondary battery box 20 to the motor 4, and the voltage The rotation of the motor 4 starts at a rotational speed in accordance with. When the motor 4 rotates, the gear pump 7 is driven, and the medicine is sucked through the hose 6 and sent to the nozzle unit 50. In the sprayer 1 of the present embodiment, the spray amount is not adjusted by the nozzle portion 50 but by adjusting the voltage supplied to the motor 4 by the dial 23 to vary the rotation speed of the motor 4.

  FIG. 4 is a longitudinal sectional view of the entire sprayer 1, and shows a state in which a primary battery box 40 is mounted as a battery box. In this figure, a primary battery box 40 is mounted instead of the secondary battery box 20 as shown in FIGS. In the primary battery box 40, the battery to be mounted is changed to a plurality of dry batteries 48 instead of the battery pack 35. For the primary battery box 40, for example, a well-known cylindrical single battery defined in IEC 60086 (JIS C 8500 in Japan) of the International Electrotechnical Commission is used. In this embodiment, six single-type dry batteries 48 are used. Installed. The primary battery box 40 only serves as a housing for holding a battery, and is not provided with a dial for changing the number of rotations of the motor 4, a control circuit for controlling the drive voltage, or the like. In addition, since the battery checker is omitted, the battery box can be manufactured at a very low cost, so that the selling price of the sprayer 1 can be reduced as much as possible.

  The surface panel portion of the primary battery box 40, that is, the portion that is exposed to the outside from the opening 12 and becomes the outer portion of the housing has a shape that enters the inside as compared with the secondary battery box 20. This shape is not an essential shape but is formed by design features. Other than the primary battery box 40, the other configuration of the sprayer 1 is exactly the same as the structure shown in FIGS. In the present embodiment, the primary battery box 40 and the secondary battery box 20 are configured to be selectively attachable to the sprayer 1. For example, when the spraying operation is performed using the secondary battery box 20, if the power of the battery pack 35 is consumed, the primary battery box 40 in which the secondary battery box 20 is removed and the dry battery 48 is set is removed. The operation can be continued by attaching to the sprayer 1.

  The primary battery box 40 or the secondary battery box 20 is connected by the same terminal 17 on the sprayer 1 side. As can be understood from FIG. 4, in this embodiment, the area A surrounded by the dotted line is a cavity, which is a space for accommodating the required number of dry batteries 48 and when the battery pack 35 is mounted in the secondary battery box. This is because the size of the main housing 10 is determined in consideration of the necessary space.

  FIG. 5 is an enlarged cross-sectional view of the motor 4 and the gear pump 7. As the motor 4, a permanent magnet field type commutator motor using a brush 4c is used. A permanent magnet is used for the stator 4b, and the rotor 4a is formed by winding a winding around a laminated iron core. A rotating shaft 4 d of the motor 4 is connected to a gear pump (gear pump) 7. The gear pump 7 of the present embodiment is a pump that transports fluid using the meshing part of two gears, uses two external gears, one acts as a drive gear (7a in FIG. 5), and the other The gear is a driven gear (not shown) that moves following the drive gear. In this embodiment, the gear pump 7 is directly connected to the rotating shaft 4d of the motor 4. However, a reduction gear (not shown) may be connected between the motor and the gear pump 7.

  In the gear pump 7, the gears of the driving gear and the driven gear rotate in a certain direction, the teeth mesh with each other in the center, generate a negative pressure when opened, and suck the liquid in the direction of the arrow 61 from the suction port 7c side. The sucked liquid goes around the outside of the drive gear and the driven gear and is squeezed out when the teeth are engaged, and is discharged toward the discharge port 7d in the direction of the arrow 62. The clearance between the outer periphery of the drive gear and the driven gear and the housing of the gear pump 7 (top clearance) and the clearance between the both sides of the gear (side clearance) are configured to be extremely small, and the drive gear is rotated. Thus, the amount of discharge with a rise in pressure is small and stable liquid delivery with a quantitative property can be performed. The discharge amount of the gear pump 7 can be easily controlled by changing the rotation speed of the gear 7a.

  FIG. 6 is a control block diagram of the motor 4 in FIG. 1 and shows a state in which a secondary battery is connected as a power source. Electric power from the secondary battery box 20 is supplied to the sprayer 1 side via the terminals 17 and 24 on the main body housing 10 side of the sprayer 1. What is characteristic in the present embodiment is that the main body housing 10 of the sprayer 1 is basically provided with only the switch 13 and the motor 4, and other electric circuits are accommodated in the secondary battery box 20. . A battery pack 35 is detachably attached to the secondary battery box 20 in the secondary battery box 20. Electric power is supplied from the battery pack 35 to the secondary battery box 20 via a terminal 29. A control circuit board 27 is disposed inside the secondary battery box 20, and a dedicated IC 27a for adjusting a voltage value is provided on the control circuit board 27. The IC 27a may be, for example, a three-terminal regulator IC, a step-down DC / DC converter IC, or other known semiconductor element, IC, or LSI. The secondary battery box 20 is further provided with a transmission board 25, and the transmission board 25 is provided with a variable resistor 25a. The variable resistor 25a is connected to the dial 23 (see FIG. 3), and the resistance value of the variable resistor 25a can be changed by rotating the dial 23.

  FIG. 7 is a control block diagram of the motor 4 in which the primary battery box 40 is attached to the sprayer 1. The electric power from the anode 48a and the anode 48b of the battery mounted on the primary battery box 40 is supplied to the sprayer 1 side via the terminal 17 of the main body housing 10. The total output voltage of the dry battery 48 is 9V, which is lower than the voltage 10.8V of the battery pack 35 attached to the secondary battery box 20. As can be understood from this block diagram, the primary battery box 40 contains six batteries, which are connected in series, and are not provided with electronic circuits such as a control circuit board and a transmission board. . Accordingly, the primary battery box 40 can be manufactured at a lower cost than the secondary battery box 20. Note that the size of the battery and the number of attached batteries may be changed according to the application of the sprayer 1. Further, similarly to the secondary battery box 20, a control circuit board, a transmission board, and the like may be provided so that the number of rotations of the motor can be controlled.

  Next, the detailed shape of the secondary battery box 20 will be described with reference to FIGS. 8 is a side view of the secondary battery box 20 according to the embodiment of the present invention when the battery pack 35 is mounted, and FIG. 9 is a side view as viewed from the side opposite to FIG. The direction of the secondary battery box 20 alone will be described on the assumption that the surface on which the surface panel 21a is located is the front as in the direction shown in FIG. 8, and the side inserted into the back from the opening 12 is the rear (secondary battery box). Note that the front-rear direction when viewed as a single unit 20 is opposite to the front-rear direction of the sprayer 1). The secondary battery box 20 includes a housing 21 that can be divided into left and right parts. The secondary battery box 20 is inserted at the rear end portion thereof from the opening 12 of the sprayer 1 so that the height of the housing 21 decreases from the front panel 21a side to the back (rear side). Composed.

  On the front side of the housing 21, a surface panel 21 a is formed as a portion (outer portion) exposed to the outside when mounted on the sprayer 1, and the other portions are accommodated inside the sprayer 1. A recess 21b is formed in the front panel 21a, and a dial 23 for changing the rotational speed of the motor 4 is provided in the vicinity of the recess 21b. Only a part of the outer peripheral portion of the dial 23 is exposed from the recessed portion 21 b, and the operator can change the setting position by turning the outer periphery of the dial 23. A step-shaped space for accommodating the battery pack 35 is formed on the rear side of the front panel 21a. The shape of this space is set in accordance with the shape of the battery pack 35 to be accommodated. The first storage chamber 21c located on the upper side in the height direction and the second storage chamber 21d located near the middle in the height direction. Is formed. An electrode holding portion 21f that holds two terminals 24 (plus terminal 24a and minus terminal 24b) that are in contact with the terminal 17 of the sprayer 1 is formed at the rear of the housing 21, and between the electrode holding portion 21f and the second storage chamber 21d. A connecting portion 21e extending in the front-rear direction is formed so as to connect the two.

  The housing 21 is made of, for example, a synthetic resin such as plastic, and is divided into left and right parts, and the left and right parts are fixed by a plurality of screws 31. A locking portion 22 for locking the secondary battery box 20 so as not to drop off when the secondary battery box 20 is attached to the sprayer 1 is formed at the bottom of the housing 21.

  8 and 9 both show a state where the battery pack 35 is mounted. The battery pack 35 can be mounted by inserting the battery pack 35 in the direction of arrow 63 with the secondary battery box 20 removed from the sprayer 1. When the battery pack 35 is properly attached to the secondary battery box 20, the lock mechanism of the battery pack 35 is activated and fixed to the secondary battery box 20. When removing the battery pack 35 from the secondary battery box 20, the battery pack 35 can be removed by moving it in the direction opposite to the arrow 63 while pressing the release buttons 36 provided on the left and right sides of the battery pack 35. As can be understood from FIG. 9, the housing 21 is configured to be able to operate the release button 36 of the attached battery pack 35, and in this embodiment, a hollow portion 21 g is formed in the housing 21. When the secondary battery box 20 is removed from the sprayer 1, the operator can press the release button 36 of the battery pack 35 attached with the index finger and thumb of the hand.

  FIG. 10 is a top view of the secondary battery box 20. Although this state shows a state in which the battery pack 35 is mounted, since the upper side of the battery pack 35 is entirely covered with the housing 21, whether or not the battery pack 35 is mounted when viewed from above is determined. do not know. The secondary battery box 20 of the present embodiment is configured with the same width W1 as the primary battery box 40 that accommodates six single batteries. However, the width of the battery pack 35 is sufficiently smaller than the width W1 substantially equal to the width of two single batteries. Therefore, in this embodiment, the hollow portions 21g are provided at the two left and right portions, the portions (the first storage chamber 21c and the second storage chamber 21d) for storing the battery pack 35 are formed with a narrow width, and the horizontal direction in the hollow portion 21g The width W <b> 2 of the battery pack is substantially the same as the width of the battery pack 35.

  FIG. 11 is a bottom view of the secondary battery box 20. This figure shows a state where the battery pack 35 is already attached to the secondary battery box 20. The bottom surface of the secondary battery box 20 has a large opening 21h for taking in and out the battery pack 35, and the battery pack 35 can be mounted through the opening 21h. The size of the opening 21h is large enough to fit the battery pack 35, and a space is formed above the opening 21h via the second storage chamber 21d and the first storage chamber 21c. The shape of the inner wall of this space is a shape corresponding to the outer shape of the battery pack 35. In addition, a guide groove or a guide rib (not shown) is formed on the inner wall of the space in order to allow the battery pack 35 to be inserted only when the mounting direction of the battery pack 35 is correct. When the battery pack 35 is correctly inserted into the secondary battery box 20, the electrodes of the battery pack 35 make good contact with the terminals 29 (see FIG. 3) on the secondary battery box 20 side. As a result, the power of the battery pack 35 can be supplied to the secondary battery box 20 side via the terminal 29.

  A locking portion 22 for locking the secondary battery box 20 so as not to fall from the main body housing 10 is formed on a part of the bottom surface 21 i of the secondary battery box 20. The locking portion 22 engages with a locking hook (not shown) formed on a release lever 15 (see FIG. 3) formed on the main body housing 10 side.

  FIG. 12 is a rear view of the secondary battery box 20 according to the embodiment of the present invention. This figure also shows a state where the battery pack 35 is mounted on the secondary battery box 20, but it is not visible whether the battery pack 35 is mounted. In this state, the secondary battery box 20 can be mounted by inserting the secondary battery box 20 into the opening 12 (see FIG. 2) of the sprayer 1 so as to slide. Two output terminals, that is, a plus terminal 24 a and a minus terminal 24 b are provided on the electrode holding portion 21 f on the back surface of the secondary battery box 20. When the secondary battery box 20 is attached to the sprayer 1, the plus terminal 24 a and the minus terminal 24 b come into contact with the terminal 17 (17 a, 17 b) on the sprayer 1 side, whereby electric power can be supplied to the sprayer 1 side. .

  FIG. 13 is a front view of the secondary battery box 20 according to the embodiment of the present invention. The surface panel 21a shown in this figure becomes a part of the outer surface of the sprayer 1. As can be understood from this figure, when viewed from the front, there is no portion protruding outward from the front panel 21a, so the secondary battery box 20 can be easily slid and inserted from the opening 12 of the main body housing 10, and It is easy to take out from the opening 12.

  Since the secondary battery box 20 of the present embodiment is configured as described above, the battery pack 35 that is widely used for electric tools can be attached to the sprayer 1. Further, since the speed adjusting means of the motor 4 of the battery pack 35 is provided on the secondary battery box 20 side, fine adjustment of the spray amount is possible. Further, since a control circuit is mounted on the secondary battery box 20 and the voltage from the battery pack 35 can be stepped down, the secondary battery box 20 for battery packs of various types and voltages can be easily prepared. Can do. Furthermore, since the battery warning means called LED32 is provided in the secondary battery box 20, the operator can surely confirm the decrease in the remaining battery level, so that the spraying operation can be proceeded with peace of mind.

  Next, the detailed shape of the primary battery box 40 will be described with reference to FIGS. FIG. 14 is a side view of the primary battery box 40 according to the embodiment of the present invention when the dry battery 48 is mounted, and FIG. 15 is a top view of the primary battery box 40.

  The direction of the primary battery box 40 alone will be described as the direction shown in FIGS. 14 and 15 (because the front-rear direction when viewed from the primary battery box 40 alone is opposite to the front-rear direction of the sprayer 1. Please be careful). The primary battery box 40 has a housing 41 manufactured by integral molding. The primary battery box 40 is inserted by sliding the rear end portion thereof from the opening 12 of the sprayer 1, and the secondary battery box 20 or the primary battery box 40 can be selectively attached to and detached from the sprayer 1. The primary battery box 40 can accommodate six widely used single-type dry batteries 48, and in the space between the surface panel 41a and the terminal end portion 41f of the housing 41, three rows on the left and the right side. Can accommodate the dry battery 48. Connection terminals 44 and 45 for connecting the anode and the negative electrode of the dry battery 48 are provided between the dry batteries 48, six dry batteries are connected in series, and the terminal 48f is connected to the anode 48a of one dry battery 48. When the negative electrode 48 b of another dry battery is located and the primary battery box 40 is mounted on the sprayer 1, the anode 48 a and the negative electrode 48 b come into contact with the terminal 17.

  On both sides of the two rows of dry cells 48, wall portions 41e having a height of about half the thickness of the dry cells 48 are formed. In addition, a plurality of battery pressing members 46 are formed between the two rows of dry batteries 48. One battery holding member 46 is provided for each dry battery 48 and is formed of a flexible polymer resin. The battery holding member 46 has a shape that extends upward from the bottom surface 41i of the primary battery box 40 and is bent toward the battery side, and is a member having an inverted L shape when viewed from the front or the rear.

  FIG. 16 is a bottom view of the primary battery box 40 according to the embodiment of the present invention. On the bottom surface 41i, semi-oval cutout portions 47 are formed at six locations. The cut-out portion 47 is provided to form the battery holding member 46 by extending the material of this portion upward during molding, and is connected so that the battery holding member 46 extends from the semi-circular straight portion. Is done. Note that the cut-out portion 47 is formed for manufacturing reasons for manufacturing the battery pressing member 46, and there is no problem in the function of the primary battery box 40 even if the cut-out portion 47 is not provided. Furthermore, a locking portion 42 for locking the primary battery box 40 so as not to drop off when the primary battery box 40 is mounted on the sprayer 1 is formed on a part of the bottom surface 41i. The engaging portion 42 is fixed so that the primary battery box 40 does not come off by engaging with the engaging hook provided on the release lever 15 of the sprayer 1.

  FIG. 17 is a rear view of the primary battery box 40 according to the embodiment of the present invention. A portion of the terminal portion 41f of the primary battery box 40 that contacts the terminal 17 of the sprayer 1 is formed with a semi-oval cutout 41c, and an anode 48a and a negative electrode 48b of the dry battery 48 exposed through the cutout 41c are provided. The terminal 17 (see FIG. 1) of the sprayer 1 can be contacted.

  FIG. 18 is a front view of the primary battery box 40 according to the embodiment of the present invention, and has a shape corresponding to the opening 12 of the sprayer 1. The front panel 41 a forms a part of the outer shell of the main body housing 10 of the sprayer 1. Unlike the secondary battery box 20, the surface panel 41 a of the primary battery box 40 is not provided with a recess or a dial for adjusting the rotational speed of the motor 4. This is mainly because the voltage of the primary battery (6 single batteries = 9 V) is lower than that of the secondary battery (lithium ion battery 10.8 V) in this embodiment, and the cost is reduced. . Accordingly, the primary battery box 40 may be configured to include a control circuit and a dial for controlling the rotation speed of the motor 4 as in the secondary battery box 20.

  Next, the shape of the primary battery box 40 in a state where the dry battery 48 is not mounted will be described with reference to FIGS. 19 to 22. FIG. 19 is a side view of the primary battery box 40 according to the embodiment of the present invention. The primary battery box 40 is manufactured by integral molding using a synthetic resin such as plastic and other inexpensive materials. The front side of the housing 41 is formed with a surface panel 41a that is exposed to the outside when mounted on the sprayer 1, and a rear end portion 41f located near the terminal 17 of the sprayer 1 is formed behind.

  FIG. 20 is a top view of the primary battery box 40 when the dry battery 48 is not attached. In the space in which the dry battery 48 is accommodated, an illustration 49a showing the type of the dry battery 48 to be mounted and the direction of the electrode is shown. Further, in the vicinity of the illustration 49a, a caution note 49b such as “Battery is correctly inserted” or “No new / old / different types of batteries are used” is engraved. Since these illustrations 49a and notes 49b can be formed at the time of synthetic resin integral molding, the influence of the cost increase is very slight.

  FIG. 21 is a bottom view of the primary battery box 40 when the dry battery 48 is not attached. FIG. 21 is almost the same as FIG. 16, but the battery holding member 46 is visible because the dry battery 48 is not attached. FIG. 22 is a rear view of the primary battery box 40 when the dry battery 48 is not attached.

As described above, according to the present embodiment, the primary battery box 40 can be manufactured at low cost by integral molding. Further, there is no adjustment means for adjusting the rotation speed of the motor 4 or voltage control means. Therefore, if the sprayer 1 using only the primary battery box 40 is used, it can be manufactured and sold at low cost. The adjustment finely and for users who wish to spray amount, the friendly user to have a battery pack for electric power tool, the liquid discharge equipment using only the secondary battery box 20, or a primary battery box 40 and a user-friendly liquid discharge equipment can be realized by such use of both of the secondary battery box 20.

  As mentioned above, although this invention was demonstrated based on the Example, this invention is not limited to the above-mentioned Example, A various change is possible within the range which does not deviate from the meaning. For example, not only a primary battery box and a secondary battery box but also an AC adapter box that is built in an AC / DC converter (not shown) and is connected to a 100 V power source via a cord may be installed. . Further, instead of the primary battery such as a dry battery, a commercially available cylindrical secondary battery such as a nickel metal hydride battery may be attached to the primary battery box 40.

DESCRIPTION OF SYMBOLS 1 Sprayer 2 Chemical | medical agent tank 2a Opening part 2b Upper wall 2c Mounting part 2d Protrusion part 2e Hole part 2f, 2g Leg part 3 Cap 4 Motor 4a Rotor 4b Stator 4c Brush 4d Rotating shaft 5a Plus terminal 5b Negative terminal 6 Hose 7 Gear pump 7a gear 7c suction port 7d discharge port 8 hose 9 outlet 9a outlet pipe 10 main body housing 10a right side housing 10b left side housing 10c connecting portion 10d latching portion 11 gripping portion 12 opening portion 13 switch 14a to 14c wiring 15 release lever 16 opening portion 17 terminal 17a plus terminal 17b minus terminal 18 nozzle holding portion 18a right arm portion 18b left arm portion 19 screw 20 secondary battery box 21 housing 21a surface panel 21b hollow portion 21c first storage chamber 21d second storage chamber 21e Part 21f Electrode holding part 21g Drilled part 21h Opening 21i Bottom 22 Locking part 23 Dial 24 Terminal 24a Plus terminal 24b Minus terminal 25 Transmission board 25a Variable resistor 26 Triangular mark 27 Control circuit board 29 Terminal 30 Terminal block 31 Screw 32 LED lamp 35 Battery pack 35a (Battery pack) tip portion 36 Release button 40 Primary battery box 41 Housing 41a Front panel 41e Wall portion 41f Termination portion 41i Bottom surface 42 Locking portion 44, 45 Connection terminal 46 Battery pressing member 47 Cutout portion 48 Dry cell 48a Anode 48b Negative electrode 49a Illustration 49b Precautionary statement 50 Nozzle part 51 Hose 52 Grasping part 53 Pipe 54 Nozzle 55 Spray port 56 Cap 59 Shoulder belt 60 Arrow

Claims (16)

An adapter that is detachably connected between a motor and a housing that houses a drive unit driven by the motor, and a battery that supplies power to the motor,
An adapter configured to be capable of arbitrarily adjusting power supplied from the battery to the motor. The adapter according to claim 1, wherein the output of the motor can be arbitrarily adjusted in a state where the adapter is mounted on the housing. The adapter according to claim 1, wherein the battery is a battery pack for an electric tool. The adapter according to claim 1, further comprising: a control circuit that performs drive control of the motor; and an adjustment circuit that sets a rotation speed of the motor. The adapter according to any one of claims 1 to 4, wherein the driving unit includes a pump for sucking a liquid, and the pump is accommodated in the housing. The housing according to any one of claims 1 to 4, wherein the adapter is removable, a pump that is accommodated in the housing and sucks liquid, and a nozzle portion that is connected to a discharge port of the pump. A liquid discharge apparatus characterized by that. A liquid tank,
A motor,
A pump driven by the motor for sucking and discharging the liquid in the liquid tank;
A nozzle connected to the outlet of the pump;
A housing for housing the motor and the pump;
A battery box detachably connected to the housing;
Wherein the battery box, the liquid discharge equipment, characterized in that an adjusting means for changing the power supplied to the motor. A battery is detachable from the battery box,
It said adjusting means, a liquid dispenser of claim 7, characterized in that the changeable electric power supplied to the motor in multiple stages or continuously. It said adjusting means, said variable resistor for changing the output voltage of the battery box, the liquid discharge equipment according to claim 8, characterized in that it is configured to include a dial for operating the said variable resistor . The housing is provided with an opening for storing the battery box,
An outer surface covering the opening of the housing is formed in a part of the battery box,
Liquid dispenser of claim 9 wherein the dial, characterized in that provided on the outer surface. The unit recess in the outer surface is provided, the liquid dispenser of claim 10 in which some or all of the dial to the recess portion, characterized in that the dial is provided so as to be exposed. Wherein the battery box, the liquid discharge equipment according to claim 9, characterized by providing an electronic control circuit for controlling the change of the output voltage. The liquid discharge apparatus according to claim 8, wherein the battery is a primary battery. The battery, the liquid discharge equipment as claimed in any one of claims 8 11, characterized in that a battery pack containing a plurality of secondary battery cells. The motor is a direct current motor, and the pump is a gear pump driven by the direct current motor;
15. The liquid discharge amount is adjusted by changing the number of rotations of the gear pump by changing the power supplied to the DC motor by the adjusting means. liquid discharge equipment as claimed. A liquid tank,
A housing provided above the liquid tank;
A handle provided at an upper portion of the housing and extending in the front-rear direction;
A shoulder belt connected to the top of the housing;
A motor housed in the housing;
A pump driven by the motor for sucking and discharging the liquid in the liquid tank;
A liquid discharge equipment having a nozzle portion capable of ejecting liquid in the liquid tank is connected to the housing,
The nozzle part is provided so as to protrude from the front of the housing,
Liquid dispenser unit, characterized in that the adjusting means for changing the power supplied to the motor, provided on a rear portion of the housing.